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| author | Borislav Petkov <bp@alien8.de> | 2010-06-09 11:04:16 +0300 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-06-10 15:24:30 -0700 |
| commit | 055c47272b8f5679d08ccc57efea3cb4aaeb5fc6 (patch) | |
| tree | 71cf77bf125f294fb30f2ff9c7f057986aaa21e1 /arch | |
| parent | cf3bdc29fcbf2cb4cfa238591021d41ea8f8431f (diff) | |
| download | linux-stable-055c47272b8f5679d08ccc57efea3cb4aaeb5fc6.tar.gz linux-stable-055c47272b8f5679d08ccc57efea3cb4aaeb5fc6.tar.bz2 linux-stable-055c47272b8f5679d08ccc57efea3cb4aaeb5fc6.zip | |
um, hweight: Fix UML boot crash due to x86 optimized hweight
Apparently UML cannot stomach callee reg-saving trickery
introduced with d61931d89be506372d01a90d1755f6d0a9fafe2d
(x86: Add optimized popcnt variants) and oopses during boot:
http://marc.info/?l=linux-kernel&m=127522065202435&w=2
Redirect arch_hweight.h include from the x86 portion to the generic
arch_hweight.h which is a fallback to the software hweight routines.
LKML-Reference: <201005271944.09541.toralf.foerster@gmx.de>
Signed-off-by: Borislav Petkov <bp@alien8.de>
LKML-Reference: <4C0F4B00.4090307@panasas.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/um/include/asm/arch_hweight.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/um/include/asm/arch_hweight.h b/arch/um/include/asm/arch_hweight.h new file mode 100644 index 000000000000..c656cf443f4a --- /dev/null +++ b/arch/um/include/asm/arch_hweight.h @@ -0,0 +1,6 @@ +#ifndef _ASM_UM_HWEIGHT_H +#define _ASM_UM_HWEIGHT_H + +#include <asm-generic/bitops/arch_hweight.h> + +#endif |